APC SurgeArrest Essential. Surge energy rating: 840 J, AC outlet types: NEMA 5–15R, Nominal input voltage: 120 V. Power plug: NEMA 5–15P. Colour of product: Charcoal. Weight: 450 g, Width: 57 mm, Depth: 38 mm. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -15 - 45 °C, Operating relative humidity range: 0 - 95 %